Ecological buffer zone based on double-layer pine piles

Abstract

The utility model is applicable to the technical field of ecological buffer zones, and provides an ecological buffer zone based on double-layer pine piles, which comprises double-layer wood pile structures constructed in rows at the edge of a riverway according to different height differences, and a soil layer along the bank of the riverway, the double-layer timber pile structure comprises a front-layer pile located at the low position of the river edge and a rear-layer pile located at the high position of the river edge, and an ecological buffering middle zone is arranged between the front-layer pile and the rear-layer pile. A gravel layer and a biochar layer are sequentially laid on the top layer of the soil layer from bottom to top. Therefore, the ecological buffer zone can effectively intercept and purify pollutants in water flow, reduce water and soil loss, improve soil fertility, promote plant growth and form a stable and sustainable ecological buffer system through various action mechanisms of biology, physics, chemistry and the like; the method has important significance in the aspects of river ecological environment protection, water quality improvement, ecological balance maintenance and the like.

Description

An ecological buffer zone based on double-layer pine piles Technical Field

[0001] This utility model applies to the field of ecological buffer zones and provides an ecological buffer zone based on double-layer pine piles. Background Technology

[0002] An ecological buffer zone is a vegetation strip established between a body of water and land, primarily used to improve water quality, protect the ecological environment, and enhance biodiversity. Through vegetation growth, it effectively absorbs and filters pollutants in the water, slows water flow, and thus reduces soil erosion and runoff pollution. Ecological buffer zones not only enhance the stability of the surrounding ecosystem but also provide habitats for aquatic organisms, thereby promoting the maintenance of ecological balance.

[0003] Current ecological buffer zones mostly adopt a single-layer planting structure, typically composed of native plants, shrubs, and herbaceous plants. Construction first requires selecting a suitable location, then soil improvement and terrain shaping, followed by planting vegetation suitable for the local ecological conditions to ensure optimal performance within the buffer zone.

[0004] However, current ecological buffer zones have several drawbacks in practical applications. First, single-layer ecological buffer zones are generally inefficient, often failing to effectively retain dissolved pollutants and degrade harmful substances in the water. Second, current buffer zones are relatively unstable, easily eroded by water flow, leading to vegetation loss and functional failure, thus affecting their long-term effectiveness in water quality protection. Summary of the Invention

[0005] To address the aforementioned deficiencies, the present invention aims to provide an ecological buffer zone based on double-layer pine piles, in order to solve the problems mentioned in the background art. This includes a double-layer pile structure constructed along the riverbank at different elevation differences, and a soil layer along the riverbank. The double-layer pile structure comprises a front layer of piles located at a lower elevation along the riverbank and a rear layer of piles located at a higher elevation along the riverbank, with an ecological buffer zone between the front and rear piles. The top layer of the soil layer is successively covered with a gravel layer and a biochar layer from bottom to top.

[0006] Furthermore, the edges of the gravel layer and biochar layer transition naturally with the soil layer.

[0007] Furthermore, both the front and rear piles are provided with rope grooves, and each rope groove is bound with inter-pile hemp rope.

[0008] Furthermore, the inter-pile hemp rope is wound in a serpentine pattern between adjacent piles; multiple inter-pile hemp ropes are wound on rope grooves at the same height.

[0009] Furthermore, the front layer of piles uses pine wood piles with a diameter range of 15-20cm and a pile spacing of 30cm, while the rear layer of piles uses wood piles with a diameter range of 10-15cm and a pile spacing of 15cm.

[0010] Furthermore, the front piles are inclined at an angle of 0-15° to the horizontal plane, and the rear piles are arranged vertically.

[0011] Furthermore, the tops of both the front and rear piles are 0.8m above the ground.

[0012] Furthermore, plants are grown on top of the biochar layer.

[0013] Furthermore, both the bottom of the front pile and the rear pile are provided with pointed ends.

[0014] Furthermore, a layer of volcanic rock is laid on top of the ecological buffer zone.

[0015] This invention effectively intercepts and purifies pollutants in water flow through multiple mechanisms, including biological, physical, and chemical methods, reducing soil erosion, improving soil fertility, promoting plant growth, and forming a stable and sustainable ecological buffer system. It is of great significance for protecting the river's ecological environment, improving water quality, and maintaining ecological balance, and can be widely applied in river management, ecological restoration, and other projects. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the ecological buffer zone structure;

[0017] Figure 2 is a schematic diagram of the front pile structure;

[0018] Figure 3 is a schematic diagram of the winding of the hemp rope between the front piles;

[0019] In the diagram: 01-soil layer; 02-gravel layer; 03-biochar layer; 04-volcanic rock layer; 1-front pile; 11-rope groove; 12-tip; 2-back pile; 3-plants; 4-hemp rope between piles; 5-straw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0024] Referring to Figures 1-3, the purpose of this utility model is to provide an ecological buffer zone based on double-layer pine piles, including a double-layer pile structure built in rows along the riverbank according to different elevation differences. The double-layer pile structure includes a front pile 1 located at a low position along the riverbank (i.e., far from the bank) and a rear pile 2 located at a high position along the riverbank (i.e., close to the bank). Both the front pile 1 and the rear pile 2 are built in rows along the direction of the river flow, and an ecological buffer zone is provided between the front pile 1 and the rear pile 2.

[0025] During the dry season, the riverbanks commonly contain sandy soil, loam, and clay. Sandy soil has larger particles, good aeration and permeability, but poor water and fertilizer retention capacity; clay has finer particles, strong water and fertilizer retention capacity, but poor aeration and permeability, and is prone to compaction; loam falls between the two, possessing good overall properties. The ecological buffer zone construction proposed in this plan is based on any of these soil types. After the main structure is completed during the dry season, it can be applied to water retention and fertilizer production during the wet season. Its structure does not depend on unique natural conditions, therefore it is not a product formed using unique natural conditions.

[0026] Specifically, in nature, the riverbank includes a soil layer 01. The ecological buffer zone proposed in this plan includes a gravel layer 02 laid on top of the soil layer 01. The gravel layer 02 is composed of gravel particles and native river soil from the soil layer 01. A biochar layer 03 is laid on top of the gravel layer 02. The biochar layer 03 is composed of biological organic matter, particulate matter, and native river soil from the soil layer 01. The organic matter consists of nutrients that promote plant growth, and the particulate matter uses oyster shells as an additive.

[0027] The following describes a method for constructing and laying each layer of the ecological buffer zone of this application and for building a double-layer wooden pile structure. It should be understood that the following method is only used to illustrate that the ecological buffer zone of this application can be realistically constructed, and is not intended to impose structural limitations on the ecological buffer zone of this application.

[0028] The method is as follows:

[0029] 1. In the early stage of construction, the construction party will excavate the pits for the installation of the first layer of piles 1 and the second layer of piles 2. During the excavation of the original soil, the excess original soil generated during the excavation will be recycled. The original soil will be mixed with organic matter and particulate matter using mixing equipment to produce the additive soil used for the biochar layer 03, and the original soil will be mixed with crushed stone particles using mixing equipment to produce the additive soil used for the crushed stone layer 02.

[0030] 2. Subsequently, a layer of gravel layer 02 is pre-laid in the pit for the installation of the front pile 1 and the rear pile 2. The front pile 1 and the rear pile 2 are positioned and erected using lifting equipment and wooden supports. Then, the gravel layer 02 is backfilled. The piles are then driven to a certain depth using a rammer and the custom-made ramming head of an excavator. At the same time, water is sprinkled to compact the gravel layer 02 foundation.

[0031] 3. The soil added to the biochar layer 03 is laid in the ecological buffer zone and on both sides away from the ecological buffer zone of the front pile 1 and the rear pile 2. The soil added to the biochar layer 03 on both sides away from the ecological buffer zone of the front pile 1 and the rear pile 2 is spread evenly with a wooden rake, then sprinkled with water and compacted. Specifically, the edges of the gravel layer 02 and the biochar layer 03 transition naturally with the soil layer 01.

[0032] Preferably, both the front pile 1 and the rear pile 2 are provided with rope grooves 11. Specifically, there are several rope grooves 11 at different heights of the wooden piles, and each rope groove 11 is bound with a pile-to-pile hemp rope 4.

[0033] Preferably, the inter-pillar hemp rope 4 is serpentinely wound between adjacent piles, that is, it passes through the gaps between adjacent piles in sequence. After winding through a certain number of gaps, the inter-pillar hemp rope 4 is tightened and fixed to the pile it is attached to. Furthermore, multiple inter-pillar hemp ropes 4 are wound around the rope groove 11 at the same height. This constructs an ecological isolation net on the front pile 1 and the rear pile 2.

[0034] Specifically, both the front layer (pile 1) and the rear layer (pile 2) contain multiple pine piles. The front layer serves as the coarse filter layer of the ecological buffer zone, using piles with diameters ranging from 15-20 cm and a spacing of 30 cm. During actual construction, an inclination angle of 0-15° can be set to intercept large suspended particles. The rear layer serves as the fine filter layer of the ecological buffer zone, using piles with diameters ranging from 10-15 cm and a spacing of 15 cm, with all piles arranged vertically. The burial depths of the front layer (pile 1) and the rear layer (pile 2) are 1.2 m and 1 m respectively, with the pile tops extending 0.8 m above the ground to ensure the continuous stability of the piles.

[0035] Preferably, the front pile 1 and the rear pile 2 are made of natural pine wood that has undergone carbonization treatment and tung oil soaking treatment.

[0036] Preferably, the top of the biochar layer 03 is planted with plants 3. Specifically, the plants in the ecological buffer zone are cattails (row spacing 40cm) and willows (plant spacing 60cm);

[0037] Preferably, both the bottom of the front pile 1 and the rear pile 2 are provided with a pointed part 12. The pointed part 12 can better achieve positioning and allow mechanical equipment to drive the pine pile into the foundation.

[0038] Preferably, the top of the ecological buffer zone is covered with a volcanic rock layer 04. The volcanic rock layer 04 is a mixture of volcanic rock and soil added to the biochar layer 03. The volcanic rock layer 04 is made of volcanic rock with a particle size of 2-4 cm and a porosity of 35%. The soil added to the biochar layer 03 accounts for 20% of the volcanic rock layer 04.

[0039] Preferably, both the front pile 1 and the rear pile 2 are bound with straw 5 by inter-pile hemp rope 4. The straw 5 is filled with reed straw, which forms an excellent barrier effect and soil and fertilizer retention function, promoting the formation of biofilm in the ecological buffer zone.

[0040] In summary, this ecological buffer zone fully leverages its functional advantages in practical use. After the main structure is completed during the dry season, it effectively enhances water retention and fertilization during the wet season. As water flows through, the front pile layer 1 acts as the coarse filter layer, effectively intercepting larger suspended solids and maintaining the ecological environment along the riverbank. The rear pile layer 2, acting as the fine filter layer with all piles vertically arranged, further filters the water after the front pile layer, removing pollutants and ensuring the cleanliness of the riverbank ecosystem. Furthermore, the volcanic rock layer 04 not only increases the stability and permeability of the ecological buffer zone but also provides a good carrier for biofilm attachment, promoting biofilm formation and growth, thereby enhancing the purification capacity of the ecological buffer zone. The organic matter in the biochar layer 03 provides nutrients that promote plant growth, benefiting the plants within the ecological buffer zone. The gravel layer 02 can effectively improve soil aeration and permeability, prevent soil compaction, and create a good environment for plant root growth. At the same time, plant roots continue to extend downward into the gravel gaps, further strengthening the soil stabilization and fertilizer retention of the riparian plants.

[0041] Therefore, this device can effectively intercept and purify pollutants in water flow through multiple mechanisms such as biological, physical and chemical action, reduce soil erosion, improve soil fertility, promote plant growth, and form a stable and sustainable ecological buffer system. It is of great significance for protecting the river ecological environment, improving water quality and maintaining ecological balance, and can be widely used in river management, ecological restoration and other projects.

[0042] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An ecological buffer zone based on double-layer pine piles, characterized in that, It includes a double-layered wooden pile structure built along the riverbank according to different elevation differences and a soil layer (01) along the riverbank. The double-layered wooden pile structure includes a front pile (1) located at a lower elevation along the riverbank and a rear pile (2) located at a higher elevation along the riverbank. An ecological buffer zone is provided between the front pile (1) and the rear pile (2). The top layer of the soil layer (01) is covered with a gravel layer (02) and a biochar layer (03) from bottom to top.

2. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, The edges of the gravel layer (02) and biochar layer (03) transition naturally with the soil layer (01).

3. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, Both the front pile (1) and the rear pile (2) are provided with rope grooves (11), and each of the rope grooves (11) is bound with a pile-to-pile hemp rope (4).

4. The ecological buffer zone based on double-layer pine piles according to claim 3, characterized in that, The pile-to-pile hemp rope (4) is wound in a serpentine pattern between adjacent piles; multiple pile-to-pile hemp ropes (4) are wound on the rope groove (11) at the same height.

5. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, The front piles (1) are made of pine wood with a diameter range of 15-20cm and a pile spacing of 30cm. The rear piles (2) are made of wood with a diameter range of 10-15cm and a pile spacing of 15cm.

6. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, The front pile (1) has an inclination angle of 0-15° with the horizontal plane, and the rear pile (2) is arranged vertically.

7. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, The tops of both the front pile (1) and the rear pile (2) are 0.8m above the ground.

8. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, Plants (3) are planted on top of the biochar layer (03).

9. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, Both the bottom of the front pile (1) and the rear pile (2) are provided with a pointed part (12).

10. The ecological buffer zone based on double-layer pine piles according to claim 1, characterized in that, The top of the ecological buffer zone is covered with a layer of volcanic rock (04).

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